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Finding the Fourth Proportional to 74,992.60, 112,490.93 and 32,851

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Solution

The fourth proportional to 74,992.60, 112,490.93 and 32,851 is: 49,277.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,992.60 : 112,490.93 = 32,851 : x
  2. Step 2: Convert to fraction form
    74,992.60/112,490.93 = 32,851/x
  3. Step 3: Cross multiply
    74,992.60x = 112,490.93 × 32,851
  4. Step 4: Simplify right side
    74,992.60x = 3,695,439,541.43
  5. Step 5: Solve for x
    x = 3,695,439,541.43/74,992.60
  6. Step 6: Final answer
    x = 49,277.39

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.